No, I don't think CUU is a lost case.
To be perfectly honest, I still think CUU has a lot of potential. IF Teck's new drilling results are outstanding enough to launch CUU into production, that would be probably shoot the SP up. (I say probably because there have been many times where I have expected the SP to rise only to come crashing down)
As mentioned before, my problem is the timeline. How long are you willing to wait for this? Months? Years? All this while the SP continues to dwindle? What about opportunity cost? If management puts out a statement about the timeline, can you even put any weight on it? My previous experience with CUU says no. That compounded with lack of insider purchasing (again, DM doesn't count) really discourages me.
Anyways, I know I said I would stop commenting, but I figured it would be worth it to at least share that I still do believe that CUU has a large upside for those who still hold positions. I was simply just sharing my own frustrations and reasonings behind selling.
Whatever you choose though, GLTA.